I can't seem to communicate to a TI piccolo (2806x) SPI slave bidirectionally (full duplex) in any of the 4 possible SPI modes.
The only way I can communicate is half duplex and to switch the 8452 clock phase to "second edge" when receiving data.
The TI clock phase is set to 1.
In the 8452 manual in section 1.8 it states "When the phase is 0, data is latched at the clock transition from
idle to asserted. When the phase is 1, the data is latched at the clock transition from asserted to idle."
Which data is it talking about, the MOSI or MISO or both?
I've attached a SPI timing diagram of the 2806x.